Three levels of depth.
One transparent model.

SailEdge™ by SailrScience’s sail model is built in three layers on top of the same ORC certificate baseline and DSH-backed boat runtime. The methodology is open, the equations are documented, and the outputs preserve the same baseline, candidate, and delta semantics throughout.

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SailEdge aero model architecture: three nested layers built on the ORC certificate foundation

907 formulas. Seven-step pipeline. One certified anchor.

SailrScience resolves per-sail aerodynamic forces, center of effort, and regime blending for baseline and candidate sailplans against the same ORC certificate anchor and live DSH-backed boat runtime. Nothing is hidden. Click any cell in the Edge Map and trace the delta back to coefficients, depower, provenance, and whole-boat outcome.

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Choose Your Depth

One model. Three levels of detail.

How the model works

You have an ORC certificate and basic sail measurements. The model classifies your sails, builds a planform, and runs regime-aware aero to produce an Edge Map of baseline-anchored deltas. Directionally correct. Explainable. No cut sheet required.

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Full comparison pipeline

You have cut sheets and advanced sail geometry. The model uses stacked-trapezoid planforms, per-sail force decomposition, occlusion modeling, and continuous regime blending. Click any Edge Map cell to see CL, CD, drive, side force, heel, rudder, and the whole-boat outcome behind the delta.

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Partner-level methodology

Your loft has wind-tunnel data, CFD results, or proprietary sail coefficients. The model accepts explicit coefficient overrides, foil-aware aero adjustments, and campaign-based tuning profiles — all protected server-side under NDA.

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Every layer starts from the same anchor.

Regardless of layer, every computation starts from the same anchor: your ORC certificate, its certified polar baseline, and the same boat runtime built on the DSH calm-water backbone with bounded follow-on lanes. Every delta is measured from that certified baseline. Every output carries provenance tags showing where each value came from. The model is stateless and deterministic — same inputs, same outputs, every time.

What we publish: equations, pipeline, assumptions, provenance. What we don’t: exact tuning coefficients, calibration data, or protected partner-specific model parameters. The methodology is open. The competitive advantage of our partners stays private.

The certificate supplies four categories of binding input: hull geometry, rig measurements, polar performance data, and sail inventory dimensions. These are the contract — immutable inputs that anchor every computation. Crew weight is a separate analysis dimension — unlocked at Tier 2 — and handled as a bounded what-if, not a certificate override.

See it on your boat.

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